Key Words
sum
addition
3 + x
x
add 4 and 5
4 + 5
Add 7 and x
7 + x
x + 3 if = 5
3 + 5 = 8
difference
subtraction
5q - 18
q
2 times 9
2 x 9
The difference of r and 16
r - 16
12 - r if r = 9
12 - 9 = 3
product
multiplication
7y
y
the difference of 18 and 3
18 - 3
18 divided by 2
18 / 2
5y if y = 9
5 x 9 = 45
quotient
division
2m - 3n
m, n
Divide 9 by 3
9 / 3
12 times m
12m
20 / z if z - 4
20 / 4 = 5
all together
addition
a + b - 2c
a, b, c
The product of 8 and 1
8 x 1
8 less than a
a - 8
z / 2 if z = 8
8 / 2 = 4